PartsTable
Technical Data Sheet
Download PDF

PAF41-4 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PAF41-4: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: CLOVER, usage_design: EXTERNAL, inside_diameter: 0.170 INCHES NOMINAL IN, outside_diameter: 0.330 INCHES NOMINAL IN, material_diameter: 0.027 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-970-7166, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
PAF41-4
NSN: 5325-00-970-7166
FSC: 5325 — Fastening Devices
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)
SPECIFICATIONS
materialSTEEL
ring_styleCLOVER
usage_designEXTERNAL
inside_diameter0.170 INCHES NOMINAL IN
outside_diameter0.330 INCHES NOMINAL IN
material_diameter0.027 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
NSN5325-00-970-7166
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PAF41-4 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DIAMETER: 0.027 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 0.330 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.170 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: CLOVER
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
MATERIAL DIAMETER0.027 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.330 INCHES NOMINAL IN
INSIDE DIAMETER0.170 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLECLOVER
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 2
1940-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACF34D4RReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy PAF41-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is PAF41-4?
PAF41-4 is a RING,RETAINING.
What parts can replace PAF41-4?
There are 2 known substitutes for PAF41-4: 1940-4, BACF34D4R. Substitute compatibility should be verified for your specific system.
What is the NSN for PAF41-4?
PAF41-4 is cataloged in the U.S. Government catalog under NSN 5325-00-970-7166. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — PAF41-4

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.